Letraset Pro Marker Blending Set, Vivid, 12-Pack Ideal marker for crafting, design and illustration, rubber stamping, and so much more Easily overlay and blend colors to create shade and tone; twin tips offer a fine bullet tip for details and a wider tip for large areas Alcohol based, quick drying, and non-toxic Includes 12 markers, blending pen, blending chart, and convenient carrying case Conforms to ASTM D4236